Bacterial communities hitching a hike - a guide to the river system of the Red river, Disko Island, West Greenland

Aviaja Zenia Edna Lyberth Hauptmann, Thor N. Markussen, Marek Stibal, Nikoline S. Olsen, Bo Elberling, Jacob Bælum, Thomas Sicheritz-Pontén, Carsten Suhr Jacobsen

    Research output: Contribution to conferencePosterResearchpeer-review

    117 Downloads (Pure)

    Abstract

    Glacier melting and altered precipitation patterns influence Arctic freshwater and coastal ecosystems. Arctic rivers are central to Arctic water ecosystems linking glacier meltwaters and precipitation with the ocean through transport of particulate matter and microorganisms. However, the impact of different water sources on the microbial communities in Arctic rivers and estuaries remains unknown. In this study we used 16S rRNA gene amplicon sequencing to assess a small river and its estuary on Disko Island, West Greenland (69°N). We describe the bacterial community through a river into the estuary, including communities originating in a glacier and a proglacial lake. Our results show that water from the glacier and lake transports distinct communities into the river in terms of diversity and community composition. Bacteria of terrestrial origin were among the dominating OTUs in the main river, while the glacier and lake supplied the river with water containing fewer terrestrial organisms and more psychrophilic taxa were found in the dominant community supplied by the lake. At the river mouth, the dominant bacterial communities from the lake and glacier were unnoticeable but became evident again further into the estuary. On average 23% of the estuary community consisted of indicator OTUs from the river. Environmental variables showed only weak correlations with community composition.
    Original languageEnglish
    Publication date2016
    Publication statusPublished - 2016
    EventThe Annual Congress of The Danish Microbiological Society 2016 - Eigtveds pakhus, Copenhagen, Denmark
    Duration: 14 Nov 201614 Nov 2016
    http://www.dmselskab.dk/en/

    Conference

    ConferenceThe Annual Congress of The Danish Microbiological Society 2016
    LocationEigtveds pakhus
    CountryDenmark
    CityCopenhagen
    Period14/11/201614/11/2016
    Internet address

    Fingerprint Dive into the research topics of 'Bacterial communities hitching a hike - a guide to the river system of the Red river, Disko Island, West Greenland'. Together they form a unique fingerprint.

    Cite this